DR. PETER JOHN OPPELT MD
NPI 1639332968
Internal Medicine - Medical Oncology in Saint Louis, MO

Active since July 07, 2008PECOS EnrolledAccepts Medicare Assignment
92.39/100
CMS Quality Rating
4921 PARKVIEW PL, DIV IM MEDICAL ONCOLOGY, STE 7A, 7B, 7C, SAINT LOUIS, MO 63110(800) 647-2098(314) 362-3192 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Nov 15, 2021 and 4 more (7 updates tracked since 2015).

About Dr. Peter John Oppelt Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. PETER JOHN OPPELT MD (NPI 1639332968) is an individual medical oncology provider in Saint Louis, Missouri, licensed in Missouri (2015014057) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and is a graduate of University Of Missouri, Columbia School Of Medicine (2008).

NPPES Registry Identity

NPI1639332968
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameDR. PETER JOHN OPPELTCredential: MD
Location Address4921 PARKVIEW PL, DIV IM MEDICAL ONCOLOGY, STE 7A, 7B, 7CSaint Louis, MO 63110-1032
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (800) 647-2098 · Fax (314) 362-3192
Fax(314) 362-3192
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Columbia School Of MedicineGraduated 2008
Enumeration DateJuly 7, 2008
Last NPPES UpdateApril 17, 20257 updates tracked since enumeration
NPI 1639332968 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License Licensed in MO · 2015014057
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
4921 PARKVIEW PL, Saint Louis, MO 63110

Other Identifiers 1

Medicaid200022169MO

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Peter John Oppelt Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1052553112
PECOS Enrollment IDI20150528001485, I20211216001565
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 48

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, nivolumab, 1 mg J9299
Nivolumab is a medication given via injection, often used in cancer treatment. It works by helping your immune system fight the cancer cells. The dosage is measured in milligrams (mg), with 1 mg being a common dose.
13,740 services17 patients
Injection, pembrolizumab, 1 mg J9271
Pembrolizumab is a medication given via injection to help your body's immune system fight certain types of cancer. It's typically administered in a hospital or clinic by a healthcare professional.
12,800 services36 patients
Injection, fosaprepitant, 1 mg J1453
Fosaprepitant is an anti-nausea medication given via injection. It's often used to prevent nausea and vomiting caused by chemotherapy. This injection blocks signals to the brain that trigger these symptoms, helping you feel better.
6,900 services28 patients
Injection, atropine sulfate, 0.01 mg J0461
Atropine sulfate is a medication given via injection to regulate heart rate or treat certain types of poisoning. The 0.01 mg dosage is carefully measured to provide effective, safe treatment.
2,210 services13 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
1,930 services96 patients
Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
1,620 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Hospital

Acute Care Hospitals · Belleville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140185
Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County
Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County
Emergency services Birthing friendly

Barnes-Jewish West County Hospital

Acute Care Hospitals · Creve Coeur, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260162
Location12634 Olive BoulevardCreve Coeur, MO 63141 · St. Louis County
Emergency services

Barnes-Jewish St Peters Hospital

Acute Care Hospitals · Saint Peters, MO
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260191
Location10 Hospital DrSaint Peters, MO 63376 · St. Charles County
Emergency services

Progress West Hospital

Acute Care Hospitals · O Fallon, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260219
Location2 Progress Point PkwyO Fallon, MO 63368 · St. Charles County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$169.38 typical visit price
range $55.65 – $169.38
Typical copayment $42.34 (range $13.91 – $42.34)
Most-billed visit code 99205
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

92.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality97.81
Promoting Interoperability100
Improvement Activities40
Cost70.26

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034
Other-Enteral and Parenteral · category OB006N
2 suppliers12 claims252 services$2.67 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
3 suppliers16 claims8,410 services$0.29 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physician Assistant
4921 PARKVIEW PL, DIV SURG HPB, STE 12B
SAINT LOUIS, MO 63110
Urology
4921 PARKVIEW PL, DIV SURG UROLOGY, STE 11C
SAINT LOUIS, MO 63110
Internal Medicine (Rheumatology)
4921 PARKVIEW PL, DIV IM RHEUMATOLOGY, STE 5C
SAINT LOUIS, MO 63110
Neurological Surgery
4921 PARKVIEW PL, DEPT NEUROLOGICAL SURGERY, STE 6B/6C
SAINT LOUIS, MO 63110
Internal Medicine (Clinical Cardiac Electrophysiology)
4921 PARKVIEW PL, DIV IM CARDIOLOGY, STE 8B
SAINT LOUIS, MO 63110
Psychiatry & Neurology (Neurology)
4921 PARKVIEW PL, DIV NEUROLOGY AGING AND DEMENTIA, STE 6C
SAINT LOUIS, MO 63110
Occupational Therapist
4921 PARKVIEW PL, DEPT OCCUPATIONAL THERAPY, STE 6F
SAINT LOUIS, MO 63110
Internal Medicine (Pulmonary Disease)
4921 PARKVIEW PL, DIV IM PULMONARY AND CCM, 8TH FL
SAINT LOUIS, MO 63110

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Peter Oppelt's NPI number?

The NPI number for Peter Oppelt is 1639332968. It was assigned to this individual provider in the NPPES registry on July 7, 2008.

Where is Peter Oppelt located?

Peter Oppelt practices at 4921 Parkview Pl Div Im Medical Oncology, Ste 7A, 7B, 7C, Saint Louis, MO 63110. The listed phone number is (800) 647-2098.

What is Peter Oppelt's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Peter Oppelt enrolled in Medicare?

Yes. Peter Oppelt is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Peter Oppelt accept?

Health plans from Cox HealthPlans list Peter Oppelt as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Peter Oppelt affiliated with any hospitals?

According to CMS data, Peter Oppelt is affiliated with Memorial Hospital, Barnes Jewish Hospital, Barnes-Jewish West County Hospital, Barnes-Jewish St Peters Hospital and Progress West Hospital.

When was this NPI record last updated?

The NPPES record for Peter Oppelt was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.